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2.
Air through the nose - An aim term used when someone says something thats funny but not enough to use "lol". When u just blow air out of your nose and smile.
Goldenhoochie134: dude thats like the time you fell down the stairs
Nudekaraoke: attn...ya that was funny
by Dalynews August 13, 2006
 
1.
An abbreviation of the word "Attention". Most often used in message boards when one user is trying to get the attention of another user.
ATTN: Darklao, someone has stolen your Punchout code!!
ATTN: DeadGhost, LET'S DUEL!!
by RedXevious November 28, 2003